System Preferences won't save after change
I am running Mac OS 10.5.8 on a Black Macbook. The problem I am having is that none my changes will save in the system preferences. For example. I change the desktop background but the background won't change. The display window in the systems preferences window will show the picture I chose, but the desktop won't.
Another example: if I turn off "spaces" in systems preferences. It will show as off in the system preferences window, but as soon as I close the system preferences window, the changes won't take affect. This seems to happen with any change to settings in the system preferences.
I have recently used both "disk warrior" and Onyx to rebuild my desktop, check my drive and everything else those applications do. But still no change.
One more hint: I deleted an application (TomTom home) from my computer a few months ago, but the old icon shows up in the Dock as a "?" after each restart. I can drag it ot the desktop and delete it, but if I restart it will always show up.
What could be wrong? Should I do a reinstall? I don't have the disks...
Thanks Mac folks!
iMac 20" 1.25 Ghz, Mac OS X (10.5.1), MacBook Core Duo (black) Mac Mini 1.42Ghz